Improvement in hoisting and dumping-apparatus



wwwa@ N. PETERS. PHOTOMTHOGRAPNE?, wAgnINGTON. D. c.

dichiari tatrt GEGRGE MA RTZ, OF 4POT'ISVILLE, PENNSYLVANIA.

Letters `Patent No. 95,366, dated September 2S, 1869.

IMPROVEMENT IN HOISTING- AND '.D'UMPING-APPARATU'S.

The' Schedulel referred to in these Letters Patent and making part ofthe same.

To all whom it 'may concern:

Be it known that I, GEORGE MARTZ, of Pottsville,

in the county of Schuylkill, and State of Pennsylvania,

have invented a new and improved Hoistin g and Dumping-Machine forMines; and I do hereby declare that the following is a full, clear, andexact description of the construction and operation of the same,reference being had to the accompanying drawings, making a part of thisspecification, in which- Figure l is a rear elevation, and

Figure 2 is a longitudinal vertical section.

This invention relates to hoisting water and coal from mines, anddumping the same into chutes. The invention consists in providing thehoisting-apparatus with a centre-drop, and/with curved recesses for thereception of the wheels of the coal-car, and with a catch for theretention of the body of the car.

Also, in the combination of a water-bucket andcarholder.

Also, in a peculiar dumping-apparatus, composed of the quadrantalside-pieces of the car-holder and concave deectors, operating iuconnection with said sidepieces.

Also, in providing a counterweight to balance the coal-car during thedumping-process.

Also, in providing a guard to make sure against the falling of the carwhiledumping.

In the drawings- A A are vertical pillars extending from the top to thebottom of a shaft in a coal-mine. l

Said pillars have guide-bars a a upon their inner sides, on which playsthe sliding frame B, which sustains the water-bucket and car.

The lwater-bucket C rests upon the bottomA of the sliding frame. It hasan orifice in its bottom, covered with coarse wire netting, for theadmission of water, and a valve to control the same. 'lhe-water-buckethas a front inclined side, with a,sharp upper edge.

From the sides of the bucket project upward the quadrantal side pieces CC' within the sliding frame.

Two slots, c c, are 4made lengthwise through each side-piece, said slotsextending a little above and a little below the top of the bucket.

A platform, c, extends cent-rally crosswise of the top ofthebncket, andhas projections extendingthrough the slots c When the bucket is raised,the platform drops to the bottom of the slots. Hence it is called acentre-drop, it being a well-known device. l

lThe drop has tracks at its ends, for the wheels of the coal-car to restand run upon, coincident with the tracks at the top of the bucket.

When the drop falls, it lowers the car until the ends of the latter restupon' the 4topiof the bucket. v

Curved recesses c a. are made in the edges of the oiisets a. a from thcside-pieces C', that form the tracks for the coal-car.

The curved recesses a receive the car-wheels after the drop-falls, yandwhen the car-holder is inclined t-o dump the coal.

A catch, a", projects upward from the top of the rear side of thebucket, which enters a recessin thebottom of the car, and holds itduring the dumping' process.

When the bucket rests on the bottom of the sliding frame, the drop israised to the levelof the top of the bucket by offsets e c, projectingfrom the inner sides of the pillars A, the tops of which offsets come incontact with the projections extending through the slots c. When thedrop is raised to this level, the car may be run on or oii.. x j

The side-pieces and drop, with their tracks, form a car-holder upon thetop of the bucket.

The side-pieces, as before mentioned,fare quadrantal, having curvededges b l, which may beidescribed as their upper and rear edges.

Upon the rear sides of the pillars A A, at the proper point forproducing the dump, are deiiectors D D, inclined outward, and havingconcave front surfaces.

As the curved edges ot' the quadrantal side-pieces C strike the concavesurfaces oi' the delectors, the side-pieces are tilted forward upon thetrunnions that connect them with the sliding frame B. `The edect of suchtilting is that the bucket discharges its contents into the lower chute,E, so placed crosswise between the inclined side-frame E that the uppersharp edge of the bucket restsdirectly over it when tilted down. At thesame time the car moves forward on the drop until its wheels arearrested by the curved recesses a, and, the front end of the car beinginclined forward, bridge the space over the chute E, and the cardelivers its load upon the chute F, occupying the front part of thespace between the inclined side-trame Said inclined side-frames supporta pair of vertical posts, F F', between which posts is sustained, incrosspieces, a guard, E", placed suiciently far in front of the mainpillars Ato give the car room to fully dump its load into the chute,and'yet to prevent the car from falling between the posts F F', if, byany chance, it should become disengaged from the catch a on the upperrear side of the bucket.

The inclined Aside-frames F support,'at their oppo site and upper ends,posts H H, similar'to the posts I*v I1, and slotted lengthwiseto such anextent as to permit the beam H to slide up and down in said slots, andform a counterweight, against which the lower end ofthe bucket comeswhen tilted down, which counterweight balances the car and prevents thefriction and strain that would otherwise come upon the sliding frame Band guide-bars a.

Having thus described my invention,

What I claim' as new', and desire to secure by Letters Patent, is-

1. Thecentre-drop a', in combination with the curved recesses a'and thecatch a, in the manuel' and for the purpose specified;

2. In a hoisting-apparatus for mines, the combination of a water-bucketand coal-car holder, substantially as described.

3, The dumping-apparatus, consisting of the quadrantal side-pieces 0',provided with means for the retention of a car, and with trunnions orother axialdevices, in combination with the concave deectors D,substantially as set forth.

4. The combination of the Vcounterweigbt H' with the bucket C andslotted guide-ways H, arrailged and operating in the manner explained. V

5. The guard F, in combination with the side-pieces F', arranged andoperating substantially as specified.

To the above specification `0f my improvement I have set my hand, this17th day of August, 1869.

Witnesses: GEORG E4 MARTZ.

Crus. A. PETTIT, S. O. KEMON.

